:root {
  --bg-canvas: #160f2e;
  --bg-surface: #271b42;
  --bg-surface-hover: #332456;
  --text-primary: #ffffff;
  --text-muted: #d4c8e8;
  --accent-primary: #e0409b;
  --accent-secondary: #b7d94b;
  --border-subtle: rgba(255, 255, 255, 0.12);
  --ease-kinetic: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-elevation: 0 14px 28px -4px rgba(10, 6, 22, 0.55);
  --glow-accent: 0 0 24px -6px rgba(224, 64, 155, 0.45);
  --radius-std: 4px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  line-height: 1.75;
  font-size: 16px;
  overflow-wrap: anywhere;
  hyphens: auto;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-std);
  object-fit: cover;
}

a {
  color: var(--accent-secondary);
  text-decoration: none;
  transition: color 0.25s ease;
}

a:hover, a:focus-visible {
  color: var(--accent-primary);
  text-decoration: underline;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.prose {
  max-width: 70ch;
}

.prose p, .prose ul, .prose ol {
  margin-bottom: 1.35rem;
}

.prose ul, .prose ol {
  padding-left: 1.5rem;
}

.prose li {
  margin-bottom: 0.5rem;
}

h1, h2, h3, h4 {
  line-height: 1.25;
  margin-bottom: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

h1 { font-size: clamp(2.1rem, 4vw, 3.1rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.15rem); margin-top: 0.5rem; }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

/* Header - Normal Flow, Transparent over Hero, Solid Class toggled via JS */
.site-header {
  position: relative;
  z-index: 50;
  width: 100%;
  background: rgba(22, 15, 46, 0.85);
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color 0.3s ease;
}

.site-header.scrolled-solid {
  background: var(--bg-surface);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  margin-right: auto;
}

.brand-link:hover {
  color: var(--accent-secondary);
  text-decoration: none;
}

.brand-mark {
  width: 28px;
  height: 28px;
  background: var(--accent-primary);
  border-left: 5px solid var(--accent-secondary);
  border-radius: var(--radius-std);
  display: inline-block;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 1.35rem;
  list-style: none;
}

.nav-desktop a {
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  white-space: nowrap;
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
}

.nav-desktop a:hover,
.nav-desktop a[aria-current="page"] {
  color: var(--accent-secondary);
  border-bottom-color: var(--accent-primary);
  text-decoration: none;
}

.menu-dots-btn {
  display: none;
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-std);
  padding: 0.4rem 0.75rem;
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
}

.mobile-dropdown {
  display: none;
  background: var(--bg-surface);
  border-bottom: 2px solid var(--accent-primary);
  padding: 1rem 1.5rem;
}

.mobile-dropdown.open {
  display: block;
}

.mobile-dropdown ul {
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.mobile-dropdown a {
  color: var(--text-primary);
  font-weight: 600;
  display: block;
  padding: 0.4rem 0;
}

/* Section Bands */
.band-dark {
  background-color: var(--bg-canvas);
  padding: 4.5rem 0;
}

.band-surface {
  background-color: var(--bg-surface);
  padding: 4.5rem 0;
}

.band-magenta {
  background-color: var(--accent-primary);
  color: var(--text-primary);
  padding: 4rem 0;
}

.band-magenta .text-muted {
  color: #fff0f7;
}

.band-magenta a:not(.btn-outline) {
  color: var(--bg-canvas);
  font-weight: 700;
  text-decoration: underline;
}

/* Hero Section */
.hero-band {
  position: relative;
  padding: 3.5rem 0 4.5rem;
  background: linear-gradient(180deg, rgba(39,27,66,0.9) 0%, rgba(22,15,46,1) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: center;
}

.hero-media-wrap {
  position: relative;
}

.hero-media-wrap img {
  width: 100%;
  aspect-ratio: 16 / 10;
  box-shadow: var(--shadow-elevation);
}

.floating-panel {
  background: var(--bg-surface);
  padding: 1.75rem;
  border-radius: var(--radius-std);
  box-shadow: var(--shadow-elevation);
  border-top: 3px solid var(--accent-secondary);
}

.floating-panel h2 {
  font-size: 1.25rem;
  margin-bottom: 0.85rem;
  color: var(--accent-secondary);
}

.consideration-list {
  list-style: none;
  display: grid;
  gap: 0.85rem;
}

.consideration-list li {
  padding-left: 1.1rem;
  border-left: 2px solid var(--accent-primary);
  font-size: 0.95rem;
}

/* Outlined Square Buttons */
.btn-outline {
  display: inline-block;
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--accent-secondary);
  border-radius: 0;
  padding: 0.85rem 1.6rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background-color 0.25s ease, color 0.25s ease, transform 0.25s var(--ease-kinetic);
  text-decoration: none;
}

.btn-outline:hover, .btn-outline:focus-visible {
  background: var(--accent-secondary);
  color: var(--bg-canvas);
  text-decoration: none;
  transform: translateY(-2px);
}

.band-magenta .btn-outline {
  border-color: var(--text-primary);
  color: var(--text-primary);
}

.band-magenta .btn-outline:hover {
  background: var(--text-primary);
  color: var(--bg-canvas);
}

/* Cards & Grids */
.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.75rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.card-panel {
  background: var(--bg-surface);
  padding: 1.75rem;
  border-radius: var(--radius-std);
  box-shadow: var(--shadow-elevation);
  transition: transform 0.35s var(--ease-kinetic), box-shadow 0.35s var(--ease-kinetic);
}

.band-surface .card-panel {
  background: var(--bg-canvas);
}

.band-magenta .card-panel {
  background: var(--bg-canvas);
  color: var(--text-primary);
}

.card-panel:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-elevation), var(--glow-accent);
}

.card-panel img {
  width: 100%;
  aspect-ratio: 4 / 3;
  margin-bottom: 1.25rem;
}

.lime-tag {
  display: inline-block;
  background: rgba(183, 217, 75, 0.16);
  color: var(--accent-secondary);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-std);
  margin-bottom: 0.75rem;
}

/* Components: Route panel, Comparison rows, Border Cross-section, Matrix */
.route-panel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.route-step {
  background: var(--bg-surface);
  padding: 1.35rem;
  border-radius: var(--radius-std);
  box-shadow: var(--shadow-elevation);
  border-left: 4px solid var(--accent-primary);
}

.comparison-table-wrap {
  overflow-x: auto;
  margin: 1.5rem 0;
  border-radius: var(--radius-std);
  box-shadow: var(--shadow-elevation);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-surface);
  text-align: left;
}

.band-surface table {
  background: var(--bg-canvas);
}

th, td {
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--border-subtle);
}

th {
  background: rgba(224, 64, 155, 0.2);
  color: var(--accent-secondary);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cross-section-box {
  display: grid;
  gap: 0.5rem;
  margin: 1.5rem 0;
}

.layer-bar {
  padding: 0.9rem 1.25rem;
  border-radius: var(--radius-std);
  background: var(--bg-surface);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  border-left: 6px solid var(--accent-secondary);
}

/* Forms & Garden Note */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  background: var(--bg-canvas);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-std);
  font-family: inherit;
  font-size: 1rem;
}

.form-control:focus {
  outline: 2px solid var(--accent-secondary);
  border-color: transparent;
}

.note-preview {
  background: var(--bg-canvas);
  padding: 1.5rem;
  border-radius: var(--radius-std);
  border: 1px solid var(--accent-primary);
  white-space: pre-wrap;
  font-family: monospace;
  font-size: 0.92rem;
  margin: 1.25rem 0;
  min-height: 160px;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Footer */
.site-footer {
  background: #100a22;
  padding: 4rem 0 2.5rem;
  border-top: 3px solid var(--accent-primary);
  font-size: 0.95rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-list {
  list-style: none;
  display: grid;
  gap: 0.6rem;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.65s var(--ease-kinetic), transform 0.65s var(--ease-kinetic);
}

.reveal.reveal-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }
  .menu-dots-btn {
    display: inline-block;
  }
  .band-dark, .band-surface, .band-magenta {
    padding: 3rem 0;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }
  .btn-outline {
    width: 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}